Re: [R] Analysis and graphics by groups

2011-04-29 Thread Bilonick, Richard A
Unless I misunderstand, I think you might want the nlsList function from the nlme package. It will let you fit a nonlinear model for grouped data. You use "|" to separate the model formula from the grouping factor. Rick From: r-help-boun...@r-project.org

Re: [R] mixed-effects model with two fixed effects: interaction

2010-06-29 Thread Bilonick, Richard A
On Tue, 2010-06-29 at 09:09 +, Ilona Leyer wrote: > Dear all, > In a greenhouse experiment we tested performance of 4 different species > (B,H,P,R) under 3 different water levels in 10 replications. As response > variable e.g. the number of emerging sprouts were measured on three dates. A >